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Dispatching method and system for data packet of sender in MPTCP (Multipath TCP (Transmission Control Protocol))

A scheduling method and technology for sending data, applied in the field of communication, can solve problems such as reducing network speed and not taking advantage of multi-path TCP

Active Publication Date: 2013-09-04
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Not only does not take advantage of multi-path TCP, but it reduces the speed of the network

Method used

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  • Dispatching method and system for data packet of sender in MPTCP (Multipath TCP (Transmission Control Protocol))
  • Dispatching method and system for data packet of sender in MPTCP (Multipath TCP (Transmission Control Protocol))
  • Dispatching method and system for data packet of sender in MPTCP (Multipath TCP (Transmission Control Protocol))

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Embodiment Construction

[0041] The sender's data packet scheduling method in MPTCP provided by the present invention solves the serious packet out-of-sequence problem caused by the different paths of the data packets, improves network performance, and truly embodies the advantages of TCP.

[0042] In order to solve the problem of out-of-order data packets, the scheduling method provided by the present invention contains the following steps in turn:

[0043] Step 701, obtaining the path forward transmission delay FWD (Forward-WayDelay) and bandwidth BW of each path;

[0044] Step 702, selecting a high-quality path;

[0045] Step 703, classify the paths;

[0046] Step 704, FWDi / FWD1≤3, execute the path scheduling algorithm with small dispersion;

[0047] Step 705, for the path with FWDi / FWD1>3, execute the path scheduling algorithm with large dispersion;

[0048] Step 706: Send the data packet to the receiver according to the scheduling result, and schedule the lost data packet according to the path...

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Abstract

The invention relates to a dispatching method and system for a data packet of a sender in MPTCP (Multipath TCP (Transmission Control Protocol)). The dispatching method comprises the following steps of: 1. acquiring forward transmission delay and bandwidth of all paths; 2. selecting a path set meeting the forward transmission delay according to a preset first condition; 3. dividing paths in the path set into paths with small dispersion and paths with large dispersion according to a preset second condition, wherein the forward transmission delay of the paths with small dispersion is shorter than that of the paths with large dispersion; 4. distributing the data packet for the paths with small dispersion or the paths with large dispersion according to a dispatching algorithm; and 5. transmitting the data packet towards a receiver on the paths with small dispersion or the paths with large dispersion. By the invention, the transmission rate of each path is dynamically detected, and transmission contents with reasonable sizes are distributed for each path, thereby better solving the network load problem. The invention solves the serious disordered packet problem generated by multipath transmission, and truly gives play to the advantages brought by the MPTCP transmission.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for dispatching data packets of a sender in MPTCP. Background technique [0002] At present, the Internet (Internet) has become an important part of social life. As the Internet penetrates into various fields, there are more and more applications on the network, and the amount of information on the webpage is also increasing. All these require a larger bandwidth for the network. , increasing the bandwidth of the network needs to increase the network infrastructure, which will increase the investment cost. But on the other hand, the existing large bandwidth resources have not been fully utilized. For example, many computers now have multiple ways to access the network, and can access the Internet in various ways. For example, notebook computers have wired Internet access, wireless Internet access, telephone line Internet access, and CDMA Internet access. figure 1 sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L12/861
Inventor 崔勇蔡云峰郭仁伟
Owner TSINGHUA UNIV
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